Mounting and cooling construction for driving units of locomotives



W. B. JUPP ET AL May 5, 1931.

MOUNTING AND COOLING CONSTRUCTION FOR DRIVING UNITS OF LOCOMOTIVES Filed Dec. 19. 1929 1 l 4 mm. m 10 afi M m R mw w n, m m A M HQ M 6, e .M u T M L Patented May 5, 1931 UNITED STATES PATENT OFFICE WILLIAM B. JUPP AND ROBERT G. ANDERSON, OF IELAINFIELD, NEW JERSEY, AS- SIGNORS TO INTERNATIONAL MOTOR COMPANY, OF NEW YORK, N. Y., A CORPORA- TION OF DELAWARE MOUNTING AND COOLING CONSTRUCTION FOR DRIVING UNITS OF LOCOMOTIVES Application filed December 19, 1929. Serial No. 415,267.

The present invention relates to cooling systems for power units and embodies, more specifically, an improved mounting and cooling system for power units in rail car operation, such units being mounted in such manner that the cooling thereof is greatly fac1l1- tated and an improved cooling system provided whereby adequate cooling is provided for certain of the units under all conditions.

It will be readily apparent, in electrically driven rail cars, that the driving motors cannot be effectively cooled due to their own rotation since, at slow speeds of the car, when the cooling is most needed, the forces available for cooling are relatively small. The 11nportance of proper cooling of these units s well known and need not be discussed 1n greater detail herein, it being suflicient to state that the present invention contemplates the effective cooling of such units under all conditions.

An object of the invention is to provide a cooling system for units of the above character which effectively cools such units under all conditions.

A further object of the invention is to provide a cooling system of the above character which is operated by a power unit capable of supplying the necessary cooling effect under all conditions, regardless of the speed of operation of the motor.

A further object of the invention is to provide a mounting for power units of the above character, such mounting greatly facilitating the effective cooling of the units.

Further objects, not specifically enumerated above, will be apparent as the invention is described in greater detail in connection with the accompanying drawings, wherein:

Figure 1 is a view in side elevation, taken in a vertical plane through a section of a rail car showing power units mounted in accordance with the present invention and provided with a cooling system constructed in accordance therewith.

Figure 2 is a view in end elevation, taken from the left in Figure 1, and showing the power units and cooling system thereof.

Figure 3 is a view in section, taken on line 3-3 of Figure 4, and looking in the direction of the arrows.

Figure 4 is a view in section, taken on line M of Figure 3, and looking in the direction of the arrows.

Referring to the above drawings, a designates the longitudinal sills of a rail car upon which an internal combustion engine I) is mounted, suitable flooring a serving to support the power units described hereinafter. The internal combustion engine drives a genorator 0 through a shaft 03, a suitable fan or blower 6 being mounted upon the shaft between the units.

A driving unit, such as an electric motor f, is carried upon a shaft f, this shaft either being an axle of the car or a lay shaft which is geared thereto. Suitable electrical connections f supply current from the generator 0 to the motor f and since these connections are well known, further description thereof is unnecessary herein.

The motor housing f is formed with an up wardly extending apertured portion i about which a flexible housing 9 is clamped. The housing of the fan 6 is formed with a similarly shaped extension 6' and the flexible hous ing is secured to these extensions in a manner illustrated in Figures 3 and 4. Since the connection between the portion 6 and housing 9 is the same as that between the housing 9 and extension 7, it will be suflicient to describe the connection between the housing and extension 6. This extension is shown in section in Figure 3 and is provided with an outwardly extending head 6 at the extremity thereof. Over this bead the housing 9 fits, it being preferably turned back at 9 over a rim 9 A suitable clamp formed of cooperating members it having spaced flanges h secures the turned back portion 9 to the extension e by means of bolts h. After the flexible boot or housing 9 is applied over the extension 0 and head 6 the bolts k are tightened to secure the housing positively to the extension.

From the foregoing, it will be seen that the cooling of the motor is effected by the fan 6 which is driven directly from the internal combustion engine 6. Since the speed of this engine is always adequate to afford the required cooling, the fan is operated in such manner that the motor f is effectively cooled under all conditions.

5 While the invention has been described with specific reference to the accompanying drawings, it is not to be limited, save as defined in the appended claims.

We claim as our invention:

1. A power plant for a-vehicle comprising an engine and generator unit, a fan driven by the engine and mounted between the engine and generator, a motor electrically connected to the generator and mounted independently thereof with one end adjacent the fan, and a flexible conduit connecting the motor and 'fan.

2. A power plant for a vehicle comprising an engine and generator unit, a fan driven by the engine and mounted between the engine and generator, a motor electrically connected to the generator,and means to conduct cooling air from the fan to the motor.

This specification signed this 13th day of December, A. D. 1929.

WILLIAM B. J UPP. ROBERT G. ANDERSON. 

